Bottom seal for gates or the like



Jan. 1, 1935. H. ZIMMERMANN BOTTOM SEAL FOR GATES OR THE LIKE Filed March 20, 1933 ELASTIC SEflL In ventor:

abrasing action" on the sill and oil-the neighbour The invention relates to movable daims and its object isthe improvement of the seal between sill. Often thisseal is desired to the gate'and'the V be perfectly watertightgparticularly to avoid the ing parts of thegate eifecte'd b'y the sand driven by the water current. If only a resistantand -not elasticsealyfor instance a wooden beam is used 1 a perfect tightness cannot be obtained, because often small objects are caught between the beam and the sill when the gate comes to be' set upon the sill so that a narrow gap rests between the an adjustable elastic bottom seal,.the combination 1 beam and the sill. Otherwise, if only an elastic seal is used, for instance and adjustable hinged movable apron or the like, the seal is exposed to injury when a large object is caught between the seal and the sill.

The inventionremoves the disadvantagesof a single not elastic but resisting seal and of a single elastic but sensible or low resistant seal by using the combination .of a resisting bottom seal with being thus performed, that the elastic seal is protected against damage by the resistant seal. A further advantage is realized by the invention in so far as the elastic seal can be adjusted without releasing its connection with the gate construction and. without executing a considerable adjusting power. g

In the case that an object is caught between seal and sill the resistant seal will protect the elastic one against damage; nevertheless the perfect tightness ismaintained, even if fine sand or similar objects are caught between the resistcording to the present invention 40 seal and the sill, the thickness of which does not 1 50 ant seal and the sill, if only their thickness does not exceed the adjustable zone of the elastic seal. In Figures 1-7 the invention is designed in due manner; by way of example, 'a seal composed ac- Fig. 1 is a cross section of thebottom seal and of the sill of a dam showing the elastic seal just touching the sill,

Fig. 2 is a side viewof the bottom seal,

Fig. 3 is a cross section of the bottom seal andv of the sill showing the resistant and the elastic seal when seated close on the sill,

Fig. 4 is a cross sectionof the bottom seal showing an object being caught between the resistant exceed theadjustable zone ofthe elastic seal,

Fig.5isasideviewofFig.4, f

Fig. 6 is a crosssection of the bottom seal showing an object being caught between the re.-

sistant seal and the sill, the thickness of which is bigger than the adjustablezone of the elastic seal, i V Fig. 7 is aside view of Fig. 6, I

In these figures 1 is the sill, 2 the skin plate of the gate, 3 a woodenbeam used as the resisting seal, whichis attached to the gate'by means of;

Hans Zimmermann D orItm 1933, site: EN 661,832

, Germanxiassignf f Aktiengew a ua y; .25. 1.933 a 161.

the chanriel 4. is-a stifieningbarofthe"skin' p i d a flat steel atthe downstream side of the beam 3 to which the additional'elastic seal 7 of tapered. crosssection' is/pressed. The elastic seal -for example made of india rubber. 8 is an angleir'on forming the downstreamside frame of the -elastic'- seal.

*9fare'a couple of angle ironsbr.

the like'which are attached to a plate llby a bolt 1 10, allowing them to swing sidewards. The'screw 12 and the nut 13 in combination with the spring plates 14 serve to'press the angle irons 9 against the frame angleiron 8 with such a power that the 1 seal '7 is prevented from slipping. 15 is a tapered shaped. plate attached to the frame angle iron 8. Between that plate and the lower end of the plate By turning the nut 18 the wedge 16 can be drawn to the downstream side, and the frame angle iron 8 and so the seal '7 can be pressed down without the screw 12, 13 being released, because the spring 14 allows the angle irons9 to swing around the bolt 10 to a certain extent. Y i

@As shown in the drawing the elastic seal 7 cannot be deformed by objects 19, which are caught between the resistant seal 3 and the sill more than it sticks over the bases of theresistant seals (see distance a in Fig. 1) If the object 19 is thinner than the distance a as shown in the Figures 4 and 5 the perfect tightening is maintained, because the elastic seal 7 surrounds closely the object 19 and at both sides of the 11 a wedge 16 is situated which can be laterally displaced by means of a screw 1'? and a nut 18.

the object is thicker than the distance a as shown in the Figures 6 and 7 no tightness is ob-] tained between the seal and the sill and the gate must be a little raised again to let pass theobject 20 to the downstream side. Nevertheless the elastic seal 7 cannot be damaged even in this case because as shown in Figs. 6 and 7, it cannot be more deformed than is limited by the distance Instead of thewooden beams 3 another resisting seal, for instance of steel, may be adopted. Instead of the tapered shaped seal 7 and its connecting and adjusting means 8 to 18 a seal of another shape and other connecting and adjusting means may be used, for instance screws which can be adjusted from the gates top instead ofthe wedges.

All those meansare covered bythe main principle of the invention that is the combination of a resistant seal with an elastic seal in such arrangement, that the latter is situated in the zone protected by the former and can be adjusted.

In that arrangementsuch a connection of the elastic seal with the gate is of great advantage and performed by the invention that the elastic seal can be adjusted without releasing its connection with the gate.

the frame and the elastic seal being 1. Abottom-seal fora gate comprising injcombinatiorf'a resistant and an elastic s'eal mounted on the lower end of the gate, the resistant seal facing the up-stream side and theelastic seal medown-stream side.

on the lower end of thegate, the resistant. seal facing the up-stream side andthe elastic" seall the down-stream side, the elastic seal, being arranged adjacent the resistant seal'and provided with a frame, securing means in the lower port-f tion of the gate for pressing the elastic seal by irame against the'resistant seal,.- adjustable means ofits in a vertical direction.

a 3 Abottom sealfor a gate comprising; in combination with the skin plate of the gate a resistant and an elasticseal mounted on the lower end oi the gate, the resistantseal facing the upstream side and the elastic seal the down-stream side, the elastic seal being arranged adjacent the resistantseal and havinga tapered cross-section and consisting of a strip of elastic material while theresistant seal consists"ofa'woo'den'beam, an

.angle iron enclosing two sides of the elastic seal, 'a"plate transversely secured to the lower pori a rtiorr :orv thev skin; plate, a couple of angle irons 2. A bottom seal for a gate comprising in corn l bination a resistant and an-elastic. seal mounted 'outer'portion of the said plate and lying with the lower, end adjacent the said angle iron of the elastic seal; screw bolts attached to the plate and traversing the said couple of angle irons for pressing the same against the angle iron of the elasticseal, resilient washers for the screw bolts, a pair or wedges arranged on the upper side of the ,angle iron of the elastic seal in operative relation, one of the wedges being supported by the said angle iron while the other wedge is supported by the lower surface of the said plate and provided with an adjusting j screw which is operatively connected with the couple of angle irons,

HANS ZIMMERMANN. 

